Functional sequences can be subset using single or double brackets. A single-bracket subset results in a new functional sequence, and a double-bracket subset results in a single function.
# S3 method for fseq [[(x, ...) # S3 method for fseq [(x, ...)
x | A functional sequence |
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... | index/indices. For double brackets, the index must be of length 1. |
A function or functional sequence.